Gang strikes three times in half an hour

Police are hunting three men over three violent robberies committed in 30 minutes in Springvale.
A 50-year-old man was knocked unconscious and suffered a suspected broken jaw in the third incident.
Greater Dandenong CIU Detective Sergeant Craig West said the first incident occurred at the Sandown Park Railway Station about 8.30pm on Thursday 16 November.
The victim, 28, from Springvale, thought he was meeting up with someone to sell his phone after advertising it online.
Three men assaulted him and took his bag.
“There was a struggle and he was punched,” Det Sgt West said.
About 9pm, a 21-year-old man walked past a car park on Sandown Road and noticed three men of African appearance sitting there.
The trio approached him from behind and one grabbed him around the neck.
Another man punched him to the face and pushed him to the ground.
They stole his backpack, which contained cash. The victim suffered minor injuries.
The third victim was walking on Flynn Street, into Warner Reserve, just after 9pm when three men of African appearance struck him from behind as he walked past.
Det Sgt West said he was knocked to the ground, suffered a suspected broken jaw and was punched and kicked unconscious.
The men stole a “substantial amount” of cash and his mobile phone while he was out. He was taken to hospital.
Police released images of men they believe could assist with their inquiries.
Call Crime Stoppers on 1800 333 000 with any information.